What’s Vulnerable › Vulnerabilities

CVE-2013-7345

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2014-03-24 · updated 2026-06-17

Description

The BEGIN regular expression in the awk script detector in magic/Magdir/commands in file before 5.15 uses multiple wildcards with unlimited repetitions, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted ASCII file that triggers a large amount of backtracking, as demonstrated via a file with many newline characters.

Affected products

• Christos Zoulas File: before 5.15 — fixed in 5.15
• Debian Linux: 6.0, 7.0, 8.0
• PHP: from 5.4.0 before 5.4.27; from 5.5.0 before 5.5.11 — fixed in 5.4.27, 5.5.11

How to fix

Upgrade to a fixed version: Christos Zoulas File 5.15; PHP 5.4.27, 5.5.11. Check the vendor advisory for mitigations.

References

• http://bugs.gw.com/view.php?id=164
• http://rhn.redhat.com/errata/RHSA-2014-1765.html
• http://support.apple.com/kb/HT6443
• http://www.debian.org/security/2014/dsa-2873
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=703993
• https://github.com/file/file/commit/ef2329cf71acb59204dd981e2c6cce6c81fe467c
• http://bugs.gw.com/view.php?id=164
• http://rhn.redhat.com/errata/RHSA-2014-1765.html
• http://support.apple.com/kb/HT6443
• http://www.debian.org/security/2014/dsa-2873
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=703993
• https://github.com/file/file/commit/ef2329cf71acb59204dd981e2c6cce6c81fe467c

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